THE PICTOU COAL FIELD — POOLE. 269* 



found, identical with those dipping northward, ate red and green- 

 ish grey sandstones with bands of the black limestone. One of 

 the latter is exposed in the narrow pass through which flows the 

 south branch of the brook, and the road from the Vale extends 

 to Pine Tree. It succeeds the conspicuous chocolate-coloured 

 rocks of the pass that dip N. 25° W. 80°. In the centre of this 

 section grey beds predominate, while red rocks succeed near the 

 base of the conglomerate and are also more numerous among the 

 vertical rocks of the North fault range. The accompanying dia- 

 gram implies the pre-existence of a great anticlinal fold that 

 brought down to the North fault the rocks immediately under- 

 lying the conglomerate, and of which the crown has been since 

 denuded. 



Immediately south of these vertical rocks lies a narrow strip 

 of bright red coarse conglomerate wJiich is believed to be an out- 

 lier of the New Glasgow conglomerate. Here it is made up of 

 quartz pebbles chiefly mixed with fine grains of argillite,. 

 apparently from the Lower Carboniferous, and cemented with 

 material that gives a blood-red stain. It extends eastward past 

 the old pent road, and westward on to the hill on McGlashen's 

 farm, the highest land between Eraser's mountain and the 

 range of Cambro-silurian to the south. It is succeeded south- 

 ward unconformably by a mottled red sandstone dipping N. 60"^ 

 E. 30°, that resembles the strata underlying the New Glasgow 

 conglomerate at Blackwood's old mill dam. The strip of these 

 sandstones is narrow and succeeded to the southward by Coal 

 Measures from which they are separated by the great North fault 



The red sandstones of this section are brighter than any in the 

 representative measures of the Millstone Grit, and they possibly 

 are of the same horizon as the strata with a southerly dip ex- 

 posed at Ross' bridge on Sutherland's river, described by Logan 

 but outside the field of this paper. 



This section is, so far as known, quite barren of fossils other 

 than a few comminuted fragments of plants in some of the lamin- 

 ated grey sandstones. Logan put it as Millstone Grit,* but the 



*Pp. 9-13 



